Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.

Related Questions:

Try a reset. Different models do it different ways - but most require either unplugging for 5 - 10 minutes and plugging back in - OR - press and hold the power button on the TV for 20 - 30 seconds. You may need to access the Set Up Menu and perform the RESET from within one of the menus. Good luck!

Power cycle the TV: turn it off, unplug it and leave unplugged for about a minute. Plug it back in, turn it on and restore settings back to factory defaults. If this doesn't work, I would recommend pursuing repair/replacement options.

Have you tried to power cycle your TV? If not, try to do so and see if that works. Power cycling the TV can be done by turning it off, unplugging it, and then plugging it back in after a minute or so and powering it back on. Then restore settings back to factory defaults.

Check whether the product is turned on.Try another channel. The problem may be with the broadcast.Is the power cord inserted into wall power outlet?Check your antenna direction and/or location.Test the wall power outlet, plug another product's power cord into the outlet where the product's power cord was plugged in.If these tips don't work, you can also try to power cycle the TV. Turn the TV off and unplug it for about a minute. Plug it back in and power it back on to reset the settings back to factory default.

Try power cycling the TV. To do so, unplug everything from the back of it, power off the TV and unplug it from the wall. Leave it unplugged for a few minutes, and then re-connect and plug the TV back into the wall. Turn it on and reset any system setting changes back to factory defaults. If the problem(s) still exist(s), then I would recommend scheduling repair service.

1.Power cycle the TV for a minute. Unplug it from power source then turn it on.
2.If it doesn't work, bypass any surge protector and plug directly to the wall socket.
3.Check if your power requirements is set correctly.
4. Try pressing the input button or source on remote control or TV panel.
5. Call service technician to check the TV.

Disconnect any audio / video cables going to your input sources. Then plug only 1 component in and see if it works. Sometimes there is a feature in certain tvs to disable the audio from the TV menu. Use your tv remote to cycle through the menu settings to see if your audio / sound was accidentally disabled. All else fails call Toshiba, they generally will help you for free.

HDMI is a very buggy system, espicially with connecting computers. First off I would check the video output settings of your computer to ensure that HDMI is still active and that it is enabled for mirror monitor or double monitor.

First things first unplug and re-plug at every point. Power cycle the TV and the computer. If that doesnt work then remove the cable, power cycle both devices then re-plug...then move onto the next step.

If you are running windows XP or Vista, right click on the desktop, select "personalize" or "properties" then look at the display settings. There you can adjust the resolution, HDMI has some bandwidth issues with long cables and cheap cables. Try dropping the resolution of the HDMI output if you can't get a stable image.

If that doesn't help you may have to go into the settings of the graphics card, commonly refered to as "Advanced Settings" on XP.

If it still doesn't help get another HDMI source and test the TV, then get another display and test the computer.

I see this is an old message so you have probably tossed or retired this set.
The problem is likely in the power supply section of the set.
If it is elsewhere in the set, the power supply may be cycling to avoid further damage or even a fire.
I suggest you not leave this set plugged in anywhere it cannot be seen.